Training Turk

Mercor listing

Software & Firmware Engineering Experts

$100–120/hr

The role in one line

An embedded systems expert who reviews and evaluates firmware, FPGA designs, and real-world hardware integration for technical correctness and practical feasibility.

Written by Training Turk from the public listing; it may be incomplete or out of date. Read the full posting on Mercor.

What you would do

  • Analyze embedded firmware, FPGA/RTL, and flight software implementations for correctness and suitability in production hardware systems
  • Identify design flaws, timing issues, race conditions, resource constraints, and architectural trade-offs in embedded systems
  • Review hardware-software integration workflows, test automation frameworks, and debugging procedures
  • Assess feasibility and reliability of proposed engineering solutions for real physical systems

Who they are looking for

  • 5+ years of embedded systems, firmware, FPGA, or flight software engineering with 3+ years of hands-on recent development on actual hardware
  • Deep expertise in at least one domain: real-time firmware, FPGA/RTL design, safety-critical flight software, or hardware test automation
  • Proven production experience at companies like SpaceX, Boeing, Tesla, NVIDIA, or comparable hardware-focused organizations
  • Proficiency with C/C++, Python, RTOS, device drivers, SPI/I2C/UART protocols, and hardware debugging tools such as JTAG and oscilloscopes

Skills this role asks for

embedded firmware developmentfpga/rtl design and verificationflight software and safety-critical systemshardware test automation and hilreal-time systems and rtoshardware debugging with jtag/swdc/c++ systems programmingdevice drivers and bootloadersphysical hardware bring-upproduction hardware integration

What the interview is likely to probe

  1. 1.Firmware lifecycle ownership

    This role depends on your ability to own complex embedded projects end-to-end, understanding how architectural decisions affect deployment and field performance.

    Expect something like: “Describe a production firmware project where you owned the architecture, hardware integration, and debugging. What was the most challenging timing or concurrency issue you encountered, and how did you resolve it?”

  2. 2.Hardware debugging and diagnosis

    The work requires systematic root-cause analysis of hardware-software interactions using specialized tools; misconstruing timing or interface issues leads to costly field failures.

    Expect something like: “Tell me about a time you used a logic analyzer or oscilloscope to debug a firmware issue that wasn't obvious from code inspection. What did the instrumentation reveal that code review missed?”

  3. 3.FPGA and digital hardware assessment

    Evaluating RTL code and FPGA implementations demands expertise in timing closure, resource constraints, and integration with embedded software to catch problems before silicon.

    Expect something like: “You discover that an FPGA design has a potential race condition in the handshake logic between firmware and the ASIC. Walk through how you would verify the failure mode and propose a fix.”

  4. 4.Real-time performance trade-offs

    Embedded systems with hard real-time constraints (flight control, medical devices, automotive safety) require disciplined analysis of latency, memory, and power; poor choices are irreversible.

    Expect something like: “A flight software candidate proposes a mutex-based synchronization scheme for a 10-microsecond control loop. What would you critique about this approach, and how would you evaluate alternatives?”

  5. 5.Safety and fault handling

    Systems controlling physical hardware must reliably detect and recover from failures; design flaws in error handling create catastrophic risks.

    Expect something like: “Imagine a power management firmware that loses communication with the battery monitoring IC. What failure modes should it handle, and how would you verify the watchdog and recovery logic?”

Exercise you may get

Review a simplified embedded system design (firmware module, FPGA interface, and test harness) and identify timing issues, race conditions, resource constraints, and missing error handling. Explain your assessment and propose fixes with justification.

How to prepare

  • Review the Linux kernel or RTOS scheduler to understand context switching, interrupt handling, and real-time guarantees
  • Study debugging techniques for embedded systems: JTAG protocols, bus analyzers, hardware-in-the-loop simulation, and systematic root-cause analysis
  • Prepare examples from your own projects showing architectural trade-offs between latency, memory, power, and reliability

Facts

Pay
$100–120/hr
Commitment
part-time
Hours
40 per week
Work arrangement
remote · Remote
Domain
Software Engineering
Role type
talent network
Posted
9/26/2026
Open slots
5